Job resources, engagement, and proactivity: a moderated mediation model
研究了工作投入在三种发展性工作资源（自主性、任务多样性和反馈）与主动性工作行为之间的中介作用，并探讨了工作匹配（需求-能力匹配和需求-供给匹配）的调节作用。
Purpose The purpose of this paper is to investigate the mediating impact of work engagement on the relationship between three developmental job resources (i.e. autonomy, task variety, and feedback) and proactive work behaviors. It also attempted to explore the moderating role of job fit (demands-abilities (D-A) fit and needs-supplies (N-S) fit) in the proposed model. Design/methodology/approach Data were collected from 225 employees in 20 small and medium-size enterprises in Istanbul, Turkey. Hypotheses were tested using hierarchical multiple regressions and hierarchical moderated regressions. Findings It was found that engagement mediated the relationships between job autonomy, task variety, and proactive behaviors. Results also revealed that the relationships between autonomy, task variety, and engagement were positive and significant only for the employees with low D-A fit while the positive impact of engagement on proactive behaviors existed only for those employees with high N-S fit. The conditional indirect impact of job resources on proactive behaviors was strongest when the D-A fit was low and the N-S fit was high while this effect was non-significant when the D-A fit was high and the N-S fit was (either) low or high. Research limitations/implications The generalizability of the findings is limited. Moreover, as the data are cross-sectional, it is not possible to derive causal inferences about the hypothesized relationships. Practical implications Organizations should provide their employees with more autonomy and task variety to enhance their engagement and proactivity. Moreover, organizations need to consider their employees’ level of job fit when they provide certain job resources. Originality/value This study tests the mediating role of engagement on the relationships between three developmental job resources and proactive behaviors. It also sheds light on the moderating role of job fit in the proposed mediation model.